-x+9y=4

The slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.

y=mx+b

Add x to both sides of the equation.

9y=4+x

Divide each term by 9 and simplify.

Divide each term in 9y=4+x by 9.

9y9=49+x9

Cancel the common factor of 9.

Cancel the common factor.

9y9=49+x9

Divide y by 1.

y=49+x9

y=49+x9

Reorder 49 and x9.

y=x9+49

y=x9+49

Rewrite in slope-intercept form.

y=19x+49

y=19x+49

Using the slope-intercept form, the y-intercept is 49.

b=49

Find the Y-Intercept -x+9y=4